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Control Valves
Pneumatic Actuated
Type AV
Nominal Size: 15, 25mm
Body Material: U-PVC, PVDF
Nominal Size: 50, 80, 100mm
Body Material: U-PVC
Electro-Pneumatic
POSITIONER
Control Valves Pneumatic Actuated Type AV
Installation, Operation and Maintenance Manual
Serial No.
Contents
(1) Be sure to read the following warranty
clauses of our product
(2) General operating instructions
(3) General instructions for transportation,
unpacking and storage
(4) Name of parts
(5) Maximum working pressure vs. temperature
(6) Specifications of valve
(7) Specifications of positioner
(8) Specifications of pressure reducing valve with filter
(9) Specifications of tools for
disassembling and assembling valve
(10) Installation procedure
(11) Support setting procedure
(12) Air piping procedure
(13) Connecting of E-A positioner procedure
(14) Operation procedure
(15) Method of adjustment positioner
(16) Disassembling method for replacing parts
(17) Countermeasures to avoid leakage
(18) Inspection items
(19) Troubleshooting
(20) Handling of residual and waste materials
H-A010-E-11
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Table of Contents
Related Manuals for AsahiAV AV Series
Summary of Contents for AsahiAV AV Series
- Page 1 Installation, Operation and Maintenance Manual Serial No. H-A010-E-11 Contents Control Valves (1) Be sure to read the following warranty clauses of our product Pneumatic Actuated (2) General operating instructions Type AV (3) General instructions for transportation, unpacking and storage Nominal Size: 15, 25mm Body Material: U-PVC, PVDF (4) Name of parts Nominal Size: 50, 80, 100mm...
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Page 2: Be Sure To Read The Following Warranty Clauses Of Our Product
Installation, Operation and Maintenance Manual This user’s guide contains very important information for the proper installation, maintenance and safe use of an ASAHI AV Product. Please store this manual in an easily accessible location. <Warning & Caution Signs> This symbol reminds the user to take caution due to the potential for serious injury or death. Warning This symbol reminds the user to take caution due to the potential for damage to the valve if used in such a manner. - Page 3 Installation, Operation and Maintenance Manual (2) General operating instructions - Do not disassemble or modify the actuator. (If disassembled forcible, internal parts may jump out and this is very dangerous.) Warning - Using a positive-pressure gas with our plastic piping may pose a hazard due to the repellent force particular to compressible fluids even when the gas is under similar pressures used for liquids.
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Page 4: General Instructions For Transportation, Unpacking And Storage
Installation, Operation and Maintenance Manual (3) General instructions for transportation, unpacking and storage - When suspending and supporting a valve, take care and do not stand under a suspended valve. Warning - This valve is not designed to handle impacts of any kind. Avoid throwing or dropping the valve. - Avoid scratching the valve with any sharp object. -
Page 5: Name Of Parts
Installation, Operation and Maintenance Manual (4) Name of parts Nominal size: 15, 25mm (1/2”, 1”) / Body material: U-PVC *Drawing shows E-A positioner of “Air to open” type. Electro-Pneumatic POSITIONER Description Description Description Body [10] Seat [25] Stem Orifice [11] O ring(A) [31a] Positioner [12] O ring(B) [41]... - Page 6 Installation, Operation and Maintenance Manual Nominal size: 15, 25mm (1/2”, 1”) / Body material: PVDF *Drawing shows E-A positioner of “Air to open” type. Electro-Pneumatic POSITIONER Description Description Description Body [16] Name plate [42] Bolt･Nut (B) Orifice [19] Stand [54] Screw (B) [20] Actuator...
- Page 7 Installation, Operation and Maintenance Manual Nominal size: 50, 80, 100mm (2”, 3”, 4”) / Body material: U-PVC *Drawing shows E-A positioner of “Air to open” type. Electro-Pneumatic POSITIONER Description Description Description Body [19] Stand Stop ring [10] Seat [20] Actuator Plug [11] O ring (A) [31a] Positioner...
- Page 8 Installation, Operation and Maintenance Manual (5) Maximum working pressure vs. temperature Control Valves Pneumatic Actuated Type AV...
- Page 9 Installation, Operation and Maintenance Manual (6) Specifications of valve Nom. Size 15mm( ”) 25mm(1”) 50mm(2”) 80mm(3”) 100mm(4”) Double acting Type Single seated control valve Air cylinder type Air to open - Standard control Double acting - Standard type Type of Nom. size - Large size control type Air to open - Minute control...
- Page 10 Installation, Operation and Maintenance Manual (7) Specification of positioner E-A positioner Input signal Electrical Protection Actuation Nom. Size Type Sign electric current Air pipe bore connection bore grade /resistance 15mm ( ”), YT-1000L-SJ111S 25mm(1”) Double 50mm(2”), action 80mm(3”), YT-1000L-SJ131S DC4-20mA 100mm(4”) ExdⅡBT5 15mm (...
- Page 11 Installation, Operation and Maintenance Manual (9) Specification of tools for disassembling and assembling valve Orifice remover Dimension table Nom. size 15mm ” 23.5 35.5 25mm 1” 37.5 49.5 Control Valves Pneumatic Actuated Type AV...
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Page 12: Installation Procedure
Installation, Operation and Maintenance Manual (10) Installation procedure - Do not use the valve to fluid containing slurry. (The valve will not operate properly.) Warning - The installed valve must never be opened or closed when foreign matter such as sand is present in the pipeline. -
Page 13: Support Setting Procedure
Installation, Operation and Maintenance Manual Recommended torque value Unit： N･m｛kgf･cm｝[lb･inch] 15 mm 25 mm 50 mm 80, 100 mm Nom. Size (1/2”) (1”) (2”) (3”, 4”) PTFE・PVDF 17.5{179}[155] 20.0{204}[177] 22.5{230}[230] 30.0{306}[266] coated Rubber 8.0{82}[71] 20.0{204}[177] 22.5{230}[230] 30.0{306}[266] Fig. 1 (11) Support setting procedure - Do not subject the valve to pump vibrations. -
Page 14: Air Piping Procedure
Installation, Operation and Maintenance Manual Perpendicular installation Perpendicular installation Set the stand under the actuator and the actuator stand. U-type clamp Rubber sheet Only for nominal size 15, 25mm (1/2”, 1”), the Ensat which is equipped to the body enables the valve to fix to the stand. - Page 15 Installation, Operation and Maintenance Manual E-E positioner Procedure Pneumatic(P/P) 1) Wind a seal tape onto the male screw of the joint with a blank about POSITIONER 3mm (about 2 threads) left at the end. 2) Tighten the joint to the piping port of positioner or pressure reducing valve with filter by hand.
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Page 16: Operating Procedure
Installation, Operation and Maintenance Manual 8) Tighten the connector to fix the cable. 9) Tighten the terminal board cover to the terminal board by hand. 10) Tighten the terminal board cover attaching the screwdriver (+) to the space of terminal board cover. 11) Tighten screws fixed the terminal board with a hexagon wrench. - Page 17 Installation, Operation and Maintenance Manual (15) Method of adjusting positioner Necessary items ● Screwdriver (+) ● Screwdriver (-) Procedure 1) Loosen the screws fixed the positioner cover with a Zero Point adjusting Knob screwdriver (+) and remove the cover. 2) Supply air to the air supply bore. 3) Input the signal electric current, DC4mA for the E-A positioner.
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Page 18: Disassembling Method For Replacing Parts
Installation, Operation and Maintenance Manual (16) Disassembling method for replacing parts - Never attempt to disassemble an actuator. (If disassembled forcible, internal parts may jump out and this is very dangerous.) Warning - Be sure to conduct a safety check on all hand and power tools to be used before beginning work. - Wear protective gloves and safety goggles as fluid remain in the valve even if the pipeline is empty. - Page 19 Installation, Operation and Maintenance Manual <Assembly> Procedure 1) Before starting assembly, silicone grease (fluorine grease is suitable for the chlorine fluid) should be spread on the sliding surfaces and sealing parts, for instance, body [1], piston (A) [5], bush [7] (body material: U-PVC), piston guide [60] (body material: PVDF) and each O-rings.
- Page 20 Installation, Operation and Maintenance Manual <Assembly> Procedure 1) Before starting assembly, silicone grease (fluorine grease is suitable for the chlorine fluid) should be spread on the sliding surfaces and sealing parts, for instance, body [1], piston (A) [5], bush [7] (body material: U-PVC), piston guide [60] (body material: PVDF) and each O-rings.
- Page 21 Installation, Operation and Maintenance Manual Nominal size: 50, 80, 100mm (2”, 3”, 4”) / Body material: U-PVC / Double acting Necessary items ● Protective gloves ● Safety goggles ● Spanner wrench ● Allen wrench ● Marker pen <Disassembly> Procedure 1) Completely discharge fluid from pipes. 2) Close the main valve for air and discharge air from the actuator.
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Page 22: Inspection Items
Installation, Operation and Maintenance Manual (17) Countermeasures to avoid leakage (only for body material PVDF) - Be sure to conduct a regular replacement of damaged parts for permanent measures. (The structure of tightening the ‘Packing Holder’ is for emergency measures against the leakage from the slide piston.) Warning - Do not tighten the stopper and the packing holder excessively. -
Page 23: Troubleshooting
Installation, Operation and Maintenance Manual (19) Troubleshooting Problem Cause Treatment The input signal can not be inputted in to the Input the input signal. positioner. The connection of input signal for the E-A Check the connection. positioner is disconnected. (Refer to page 13) The valve does not operate. - Page 24 Installation, Operation and Maintenance Manual Control Valves Pneumatic Actuated Type AV [Automatic Valve] Distributor http://www.asahi-yukizai.co.jp/en/ Information in this manual is subject to change without notice. 2020.2 Control Valves Pneumatic Actuated Type AV...
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